Float-controlled oil-supply device for gas-engines.



I J. A. CHARTER. FLOAT CONTROLLED OIL SUPPLY DEVICE FOR GAS ENGINES.

' APPLICATION FI LED JULY '28. 1908.

Patented Sept. 14, 1909.

JAMES A. CHARTER, or CHICAGO, ILLINOIS, AssIGNoR TO AUSTIN MANUFAGTURING COMPANY, OF CHICAGO,- ILLINOIS, A CORPORATION OF ILLINOIS.

' STATES PATENT PFC,

FLOAT-CONTROLLED OIL-SUPl LY FOR GAS-ENGINES.

Specification of Ltters'IPateilt-.. Patented Sept, 14, 1999, Application filed July as, 1908. Serial no. 441782,

To all whom it may concern:

Be it known that 1, James A. Cmurrnn, a citizen of the United States, residing at Chicago, in the county of Cook and State of the valvestem 11, being confined thereon by collars 17 or other suitable devices.

Referring next to the means for supplying the liquid fuel to the fuel-inlet valve, where- 'in my present invention resides, 18 desig- 6o nates the oil pump, which is in practice, continuously operated by a moving part of the -engine, such as an eccentric 19 mounted on a counter-shaft 20. This pump draws its supply from a tank or reservoir 21 through a pipe 22, and delivers its successive charges through a supply pipe 23 and coupling 24 to the small central duct of the valverseat 10. Communicating with and extending lalerally of the supply pipe 23, just below the valve, is an overflow pipe 25, which leads to a height somewhat above that of the valveseat and overflows into a return pipe 26 leading back into the tank or reservoir 21. On the upper end of the overflow pipe 25 is preferably located a weighted valve 27 sutli- -cicn,t to overcon'ie the friction of the oil in passing through the oil-supply valve when the latter is open. A

In the operation of the device, the valve 11 being raised, the oil supplied by the pump l8 7 flows upwardly through the ported valve seat 10 into the valve-chamber, overflows the latter into the float-chamber, and from the latter flows by gravity into the usual vaporizing nipple or nozzle of the mixing chamher, the float l3 automatically controlling the level of the oil in such vaporizing nozzle, as well understood in mixing devices of this character. After the oil has risen to a predetermined height, the float 13 acts on the lever 15 to force the valve 11 to its seat, which arrests the free supply ofoil, the eX- cess of the latter due to the continuous operation of the pump flowing up throu h the overflow pipe 25 and back through t e return pipe-26 to the tank 21. By thus providin a continuously operating oil-supply ing evice, with provisions for returning surplus oil to the reservoir, suflicient fuel in the mixing chamber is always insured, yet without an waste of fuel; and the means whereby thls important and practically useful result is attained, as herein shown and described and defined in the appended claims, constitutes the subjectanatter of my present invention.

I claim:

1. In an oil supply mechanism for gas engines, the combination with a float-chamber,

Illinois, have invented certain new and useful Improvements in Float-Controlled Oil- Supply Devices for Gas-Engines, of which the following is a specification.

This invention relates to the art of internalcombustion engines, and has reference more particularly to a new and improved mechanism for insuring at all times a suflicicnt supply of liquid fuel to the engine cylindcr.

To this end the invention consists essentially in the combination with an oil-inlet valve, an oil pump, and a supply connection therebetween, of'an oil overflow pipe tapping said supply connection and extending to a point above said oil-inlet valve, a return pipe therefrom to the oil reservoir being-meter ably also employed in order to prevent waste of oil and insure its return to the reservoir.

My invention will be readily understood when considered in connection with the ac companying drawing, which shows in side elevation an oil-supply mechanism with which my invention is concerned, the valve and float-chamber and a portion of the oil return pipe, being in vertical section.

Referring to the drawing, 5 designates that portion of the cylinder head containing the usual induction passage for the explosive char e. r

6 esignates a hollow casting containing the mixing chamber and usual oil inlet nipple or nozzle (not'shown), with which communicates an air-supply passage 7, and also a float-chamber 8. Integral with and to one side of the float-chamber 8 is a fuel supply valve chamber 9', containing a suitably portad valve-seat 10, with which cooperates a valve 11, the stem of which is slidably nbunted in a bearingmember 1.2 in the upper end of the valve-chamber; the lower end )f the valve having a tapered or pointed end ilidaloly engaging the valve-seat 10 and coin rolling the oil-inlet ports thereof. In the loot-chamber 8 is a float 13 slidably mount- :d on a rod 14: secured in the bottom of the :hamber; and the top of said float is adapt; :d to engage the longer arm of a lever 15 hat is pivoted at 16 in the wall of the float- :hambeigand the shorter arm of which exends into the valve chamber and embraces ofen oil-in1et valve therefor, an oil pump, a suiiply connection 'between said pump and ve ve, and an oil overflow pipe tapp ng seid supply connection and extending to a. oint 5 above said oil-inlet valve, substantial yes described. 2. In an oil'supply mechanism for gas ongines, the combination with an oil reservoir and a float-chamber, of an oil-inlet valve for from the to of said overflow pipe back to said reservoir, substantially as described.

eeeese 3. in an oil supply mechanism foi' gas on J ginesj, the combination with an oil reservoir and afloatchanbenof en oil-inlet valve for said float-chamber, a connection between said reservoir and valve, a pump in saidconnection,-a.n oil-overflow pipe tapping said extending to a point above the 12LH78I','& weighted valve on the upper end of said overflow pipe, and it return pipe for the overflow oil leading from the top of said even coimect ion between said pump and valve and flow, pipe back to said reservoinsubstantially as described.

JAMES A. CHARTER. Witnesses M N CLARE L, ROSENQW. 

